Gas-lamp.



A. O. ROESSLER & W. A. ARMINGTON.

GAS LAMP.

APPLIGATION FILED JUNE 5, 1911.

1,043,463. Patented Nov. 5,1912.

2 SHEETS SHEET 1.

AttCSt; a MIHVCIIL OI'SI mMAttyS- COLUMBIA PLANOGRAPH co.,wAsmNuTON, D. c.

A. 0. ROESSLBB. &W. A. ARMINGTON.

GAS LAMP.

APPLIOATION FILED JUNE 5, 1911.

1,043,463. Patented Nov. 5, 191 2;

2 SHEETSSHEET 2.

Attest: I11 ven tors:

J 'MM fi wm Mays.

COLUMBIA PLANDGRAPH c0. WASHINGTON, n. c.

riNrraD sr rns rAraNr curios.

AMANDUs c. aonssrnn, or IIINnoLA, AND WILLIAM A. ARMINGTON, on NEW YORK, N. Y., ASSIGNORS, BY manor AND MESNE ASSIGNMENTS, TO DELAWARE GAS LIGHT coMrANY, A CORPORATION OF DELAWARE.

GAS-LAMP. 7

To all whom it may concern:

Be it known that we, AMANDUS' C. Rons- SLER, a subject of the King of Great Britain and Ireland, formerly of London, England, and now a resident of Mineola, Nassau county, and State of New York, and WIL- LIAM A. ARMINGTON, a citizen of the United States, and a resident of the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Improvements in Gas-Lamps, of Which'the following is a specification.

The lamp of the present invention is designed particularly for use in what are known as pressure-gas systems wherein gas and air under pressure are led to the burner, there to be mixed in the proper proportions and burned.

The principal object of our invention is to control the lamps from a distance; and another object is to automatically cut off the flow of gas in case of any failure in the air supplying system.

To these ends our invention consists, in a preferred form, of air and gas conduits for supplying air and gas to a burner or other point of consumption, and means actuated according to the pressure in the air conduit to control the flow. of gas in the gas conduit. This controlling means may be and preferably is in the form of a valve in the gas conduit, and a pressureactuated device, (such as a diaphragm), in the air conduit, which is operatively connected with the valve. The parts are preferably so arranged that when the pressure. is turned on in the air conduit, the pressure-actuated device will be operated to open the valve in the gas conduit, and vice versa, when the air pressure is turned off or in case of failure of the air supply, the pressure-actuated device will operate to shut ofi the gas.

Another eatur-e of our invention consists in the provision'of an independent passageway for the gas, whereby after the flow of gas has been cut off by the automatic valve mechanism, a temporary flow of gas to the burner may still be provided for.

Various other objects and features of the invention will appear as the specification proceeds.

Specification of Letters Patent.

Application filed June 5, 1911.

Patented Nov. 5, 1912. Serial No. 631,349.

We have illustrated in the accompanying drawings a preferred embodiment of our invention but we would have it understood that various changes and modifications may be made therein without departing from the spirit and scope of the invention.

I11 the drawings: Figure 1 is a view in elevation illustrating the use of the lamps in a pressure-gas system. Fig. 2 is an e11- larged sectional view of the controlling mechanism of the lamp.

The same reference characters refer to like parts throughout the several views.

In Fig. l we have illustrated the lamps 1, as being supplied with gas by means of an ordinary gas service pipe 2, leading from a gas main, and with air through an air service pipe 3, connected with a blower 4, or other device for supplying air under pressure. An air reservoir may be interposed in the air connections, and a cock 6 is preferably provided for controlling the flow of air to the lamps.

As a means for suspending the lamp and also to provide a convenient way of conduct ing the air and gas to the burner, the lamp is preferably provided with a hollow or tubular arch 7 which may be secured direct to the top of the lamp body 8, as by means of bolts 9, substantially as indicated in Fig. 2. The two sides of the arch are preferably separated, as by means of a partition 10, and

gas and air connections 11 and 12 respectively are connected to the opposite sides of the arch.

The precise form of the burner may vary, but in the present instance it is shown as consisting of a Bunsen tube 13 provided with a mantle 14 at. its lower end. The gas and air are caused to mingle in a suitable mixing chamber 15 before passing to the burner tube. In the preferred construction this mixing chamber is disposed directly above the burner tube and in communication therewith by means of an annular passage 16, substantially as shown.

The means for controlling the flow of gas is preferably in the form of a valve 17 which controls passage from the gas chamber 18 to the mixing chamber 15. The gas is conducted to this gas chamber by means of a short pipe connection 19 from the gas containing side of the arch. The opening between the gas chamber and mixing chamber is preferably in the form of a valve seat 20 to be en gaged directly by the valve. For the purpose of operating this valve, there is preferably provided a pressure actuated device such as the diaphragm 21, located in an air chamber 22 above the gas chamber and connected with the upper portion of the valve, as by means of the screw nuts 23. Air under pressure is led to a point beneath the diaphragm by a short pipe connection 24 from the air-conducting side of the arch. Toprevent passage of the air from the air chamber into the gas chamber, and at the same time to allow for the up and down movements of the valve, there is preferably interposed a smaller diaphragm 25 which forms a horizontal partition between the air chamber and gas chamber. As a means for conducting the air to the mixing chamber, the valve is preferably made hollow with the longitudinal passage 26 therein, ports 27 permitting the air to flow from the air chamber through the longitudinal passage in the body of the valve. Suitable means may be provided for regulating the flow of air and in the present instance this means is shown in the form of a needle valve 28, adjustably engaged in the valve body.

In the operation of the device thus far described, when the flow of air under pressure is turned on in the air service pipe, the air will flow through the pipe connections described, into the air chamber beneath the diaphragm 21. This pressure acting upward on the diaphragm will lift the same,

carrying with it the valve 17. The valve is thus unseated and permits the gas to flow from the gas chamber down into the mixing chamber. The air issuing from the point of the valve, mingles with the gas in the mixing chamber, producing a mixture of high efficiency which flows from the mixing chamber down into the burner tube. Any additional air needed to properly support combustion may be taken in through the ports 29 in the burner tube, which is thus in the nature of a Bunsen burner. It will thus be seen that the flow of gas may be turned on to a lamp or to a series of lamps simply by turning on the flow of air. On the other hand, the flow of gas may be cut off by turning off the supply of air, since the valve is arranged to close automatically when the air pressure against the diaphragm is released. The elasticity of the diaphragm and the weight of the valve may be relied upon to close the valve upon release of the air pressure, or additional means, such as a spring or weight may be utilized to close the valve. Thus, in the present instance, the screws 23 are shown as heavy enough to serve as a weight to assist in the closing of the valve. Each lamp may be provided with a pilot light 30, as is usual, to cause the lamp to be lighted automatically as soon as the gas is turned on.

As the flow of gas is automatically shut off upon release of the air pressure beneath the diaphragm, then, if no other means were provided, it would be impossible to use the lamps at all in case of failure in the air supply system. In order that the lamps may not be altogether dependent upon the air supply system, we preferably provide fora supply of gas independent of the automatically controlled valve. This independent supply of gas is preferably provided by means of a supply tube 31 extending down through the mixing chamber and connected with the gas chamber by way'of a branch passage 32. A valve 33 is preferably located in the passage 32, so that the gas may be turned on in the tube 31 at will. In this way a temporary light may be provided upon failure of the air supply system. The passage of air through the ports 29 into the Bunsen tube may be regulated by means of an annular shutter 34.

The annular orifice or passage 16 between the mixing chamber and the Bunsen or burner tube may be formed by providing the supply tube 31 with a tapered head 35 concentrically disposed with respect to an opening in the end of the sleeve 36 which is engaged on the lower end of the mixing chamber. It will be evident that by adjusting this sleeve up and down, (it preferably having screw threaded connection with the mixing chamber for this purpose, substantially as shown) the size of the orifice and thus the volume of gases flowing to the burner, may be regulated at will. A lock nut 37 may be provided to securethe sleeve 36 in adjusted position. To assist in the proper mixing of the air and gas within the mixing chamber, there may be provided a disk 38 in the lower end of the chamber, having openings orperforations 39 therein. Each lamp may be provided with a cock 40 for independently controlling the individual lamps.

In the construction illustrated the air under pressure entering the chamber 22 acts upwardly upon the diaphragm 21 to open the valve andv at the same time it acts clownwardly upon the diaphragm 25 tending to close the valve. In order then that the upward pressure on the diaphragm 21 will.

burner tube, a gas chamber above the mixing chamber, an air chamber above the gas chamber, a valve between the gas and mixing chambers,'means for normally holding said valve in its lowermost and closed position, means for supplying gas to the gas chamber means separating the air and gas chambers, means of communication between the air and mixing chambers, an air pressure device located in the air chamber, adapted to raise and open the valve between the gas and mixing chambers when pressure is supplied, and means for conducting air under pressure into the air chamber to act upon the air pressure device.

2. In an inverted high-pressure gas lamp, a burner tube, a mixing chamber above the burner tube having a discharge opening in line with the burner tube, a gas chamber above the mixing chamber, an air chamber above the gas chamber, a valve between the gas and mixing chambers, means for normally holding said valve in its lowermost and closed position, means for supplying gas to the gas chamber, means separating the air and gas chambers, means of communication between the air and mixing chambers, an air pressure device located in the air chamber adapted to raise and open the valve between the gas and mixing chambers, when pressure is supplied, means for conducting airunder pressure into the air chamber to act upon the air pressure device, and a conduit for supplying gas to the burner tube independently of the valve between the gas and mixing chambers, the said conduit extending through the mixing chamber and substantially through the discharge opening therein so as to deliver gas direct to the burner tube.

3. In a high-pressure gas lamp, a mixing chamber, a gas chamber having an opening communicating with the mixing chamber, an air chamber adapted to receive air under pressure, a flexible diaphragm separat ing the gas and air chambers, a valve controlling the opening between the gas and mixing chambers and carried by the diaphragm aforesaid, a diaphragm for operating the valve, located in the air chamber and connected to the valve so as to open the same when acted upon by fluid under pressure, means tending to hold said valve closed in opposition to the opening action of the valve-operating diaphragm, and means for supplying air to the mixing chamber.

4. In a high-pressure gas lamp, a mixing chamber, a gas chamber having an opening communicating with the mixing chamber,

an air chamber, a flexible diaphragm sepa rating the gas and air chambers, a second flexible diaphragm located in the air chamber having an area larger than that of the first diaphragm, a valve controlling the opening between the gasand mixing chambers connected to both the first and second diaphragms, means for introducing air under pressure between the two diaphragms, to open the valve, and means acting in opposition to said air tending to close the valve.

5. In a combined high and low pressure gas lamp, a mixing chamber terminating in an outlet, a gas chamber, a pneumatically actuated valve for cont-rolling the admission of gas to the mixing chamber, a burner tube arranged to receive a supply of fuel from the outlet in the mixing chamber, and an independent manually controlled gas connection extending around the pneumaticallyactuated valve, the said connection extending through the mixing chamber and substantially through the outlet in the end of the mixing chamber so as to deliver gas to the burner tube direct.

6. In a combined high and low pressure gas lamp, a mixing chamber, a gas chamber, a pneumatically actuated valve for controlling the admission of gas to the mixing chamber, a burner tube having a contracted opening communicating with the mixing chamber, and an independent manuallycontrolled gas connection extending around the pneumatic valve, through the mixing chamber and having an opening located in the opening between the burner tube and mixing chamber, whereby gas can be supplied to the burner tube direct.

7. In a gas lamp, a lamp top, a burner tube carried by said lamp top, a hollow arch separated into two ducts located above the lamp top and connected thereto, gas and air connections entering the separate ducts of the arch, a member having a mixing and a gas chamber in communication with the burner tube located intermediate the arch, an air chamber also located between the sides of the arch, and lateral gas and air connections extending from opposite sides of the arch to the gas and air chambers respectively.

8. In combination, a burner tube, a mixing chamber having an opening in the end thereof for discharging into the burner tube, means for conducting gas and air under pressure to said mixing chamber, and independent means for conducting gas to the burner tube, said means comprising a tube having a head of tapered shape located in the opening between the mixing chamber and burner tube.

9. In combination, a mixing chamber, a gas-supply tube extending down through said mixing chamber and provided with a tapered exit head, and a sleeve partially closing the end of the mixing chamber, the said sleeve having a central. opening through which the tapered head of the supply tube projects, and means for adjusting the sleeve of New York and State of New York this upon the mixing chamber whereby the size of the annular orifice between the tapered head and the edge of the opening in the sleeve may be adjusted to regulate the flow from the mixing chamber.

Signed atNew York city, in the county 17th day of May A. D. 1911.

AMANDUS C. ROESSLER. WILLIAM'A. ARMINGTON.

Witnesses: v

JEANNETTE STORK, PHILIP S. MCLEAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

